Device for adjusting flash-plates to ventilating-pipes and different-pitched roofs



(No Model.)

B. B. BIGNALL.

DEVICE FOR ADJUSTING FLASH PLATES TO VENTILATING PIPES AND DIFFERENT PITGHED ROOFS.

0. 30 574. Patented Dec. 11 1894.

Witnesses gmoe'wtoz TNITED STATES PAT NT Fries.

BURNETT B, BIGNALL, or ELGIN, ILLINOIS.

DEVICE FOR ADJUSTING FLASH-PLATES T VENTlLATlNG-PIPES AND DIFFERENT-PITCHED ROOF S.

SPECIFICATION forming partof Letters Patent No. 530,574, dated December 11, 1894.. Application filed April 20, 1 8 94. erlal No. 508.258. No model.

To a. whom it may concern: 7

Be it known that I, BURNETT B. BIGNALL,

a citizen of Elgin, county of Kane, and State of Illinois, have invented new and useful Im provements in Devices for Adjusting Flash Plates to Ventilating-Pipes and Different- Pitched Roots, of which the following is a specification, reference being had to the annexed drawings, illustrating the invention, in which Figure 1, is a plan, or top view of the dc vices with the flash and top of the ventilating pipe relatively in position; Fig. 2, the devices in elevation as applied to a roof of steep pitch; Fig. 3, a side elevation of Fig. 1; Fig. 4, an inverted view of Fig. 1; Fig. 5, a vertical central sectional elevation of the two-part adjustable ventilating pipe, elevation of one rafter, central section of the roof boards and flash plate, and a vertical longitudinal section of the hood; all in position as when the devices are applied to a steeper pitched roof; Fig. 6, the same devices employed with an auxiliary hood portion as when the devices are applied to a roof of medium low pitch; Fig. 7, a perspective representation of the auxiliary hood portion, removed from the other devices; Fig. 8, a cross section on'line y, Fig. 3. I

The nature, construction and application of this invention will be fully comprehended by reference to the drawings and the following detail specification.

A, represents the flash plate which may be made of any kind of suitable sheet metal, and it may be united water-tight to the segments L, end N and fixed covering S by solder or other suitable means, or a surrounding flange B, Fig. 1, may be united to the said portions and the flange united by solder to a flash plate of the required dimensions.

. I employ what I term a hood as an indispensable element in my devices, and the main portion thereof is composed of two segments L, and L, a lower fixed covering S, and an upper end plate N, the two latter being rigidly attached to the segments L. An adjustable cover E, provided with a pipe passage and exterior overlapping flanges M, complete the hood for roofs havinginclinations up to about thirty degrees. For steeper roofs it is convenient to add an equivalent main pipe 0 leading to thesewer.

adjustable cover shown at G, H,F, 0, Fig. 7. The flash plate A has formed through it an elongated slot D with rounded ends that the ventilating pipe B may pass through it when the plate lies, inclined on various pitched roofs. The adjustable cover E, is provided with a round hole through it for the passage of theportion B of the ventilating pipe which is soldered to said cover and extends into the The dotted line P, Fig. 6, indicates that the lower end of pipe B may terminate, within the pipe (3, at a point above the flash plate A.

I, represents the roof-board and J one rafter, the former being cut away for the passage of pipe 0. When the equivalent device shown at Fig. "7, is not employed the fixed covering S is required to be much longer, that the adjustable cover E may lap over it. Examples of this construction are shown at Figs. 2 and 5; but where the devices shown at Fig. 7 are employed as at Figs. 3 and 6, the adjustable cover E, at its lower end comes to the plate A, and the end of the equivalent 0, comes to the plate A above the pipe B, or comes to the roofing material and forms a water tight connection. I

The devices shown at Fig. 7, are to be placed on the segments L, L, before the adj ustable cover E, its flanges G, G, projecting over the segments L, L. The adjustable cover is then to be placed on the segments L, L, and on the portions G, G, F of the equivalent portion, as shown at Figs. 3 and 6.. In

all ordinary conditions the devices thus: constructed will make a water-tight connection. There may be conditions, such as the melting of accumulated snow or ice, which can be provided against by soldering the flanges M and G to the segments L.

b, Figs. 2 and 5, shows that the slot D extends to the inner portion of the fixed cover S.

The advantages of these devices are the adaptation of oneot the complete single devices to roofs of difierent pitches; providing means such as the pipe B sliding in the pipe 0 toequalize the settlement of the roof; a'

great saving in the cost, and the speedy manner of application.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statestoo An improvement in devices for adjusting of the ventilating pipe and the iowersection flash-plates to ventilating pipes, consisting O of said pipetelescoped over section B, sub- [0 of a. flash-plate provided with an elongated stantially as and for the purpose specified.

opening and housed ,in with two se nient- 5 plates L, a fixed end cover, and an end piece BURNETT BIGNALL' secured water-tight to the flash-plate and seg- Witnesses: ments L,-L, in combination with an adjust- G. L. CHAPIN, able cover which supports the upper section B E. M. STEIN. 

